Wrench



H. F. SAMSON. WRENCH. APPLICATION FILED act. 6, 1919.

Patented Mar. 8, 1921.

avwenloz ark/awn HENRY F. SAMSON, OE OAKLEY, IDAHO.

WRENCH.

Specification of Letters Patent.

Patented Mar. 8, 1921..

Application filed. October 6, 1919. Serial No. 328,717.

To all to 710mit may concern Be it known that I, HENRY F. Samson, a citizen of the United States, residing at Oakley, in the county of Cassia and State of Idaho, have invented certain new and useful Improvements in renches, of which the following is a specification.

My invention has reference to wrenches, clamps, claws, or other gripping, fastenlng or securing devices consisting of jaws capable of movement toward and relatively to each other, and my invention is particularly intended to provide means whereby the inclination of the jaws, clutches or gripping means which form the operating parts of devices of this kind, may be inclined, so as to make such devices particularly adapted for the taking hold of, grasping or securing of round articles or of such having inclined or irregular surfaces, and it is one of the objects, of my invention by adjusting and changing the inclination of the gripping means, jaws or the like toward and relatively to each other, to minimize the liability of slipping of the jaws, and furthermore, to generally increase the usefulness and applicability of devices of the kind referred to. Other objects and advantages will become apparent as the specification proceeds.

My invention is shown in a preferred form of construction on the accompanying drawing in Figure 1 in elevation as applied to a wrench, similar to a so-called monkeywrench. Fig. 2 is a longitudinal section of the movable part of the wrench. Fig. 3

shows the relatively stationary part in ele- 1g. is an edge vation and part section. view of Fig. 3. Fig. 5 is a view of a medified construction.

In the drawing :1 is the shaft of the wrench at one end of which is provided the angularly, preferably vertically disposed jaw 3, having the usual serrated edge 4i. The shaft 1 may serve as-a guide for the movement of the relatively movable jaw 5, having the serrated edge 6 opposite the edge 4, and being provided with a longitudinally extending square shaped guideway 8. The dimensions of this guideway are somewhat larger than the dimensions of the shaft, and

at its mside it is provided with a cam sur- .said jaws allowing face 10 the distance of whose'highest point from the opposite side of the guideway 8 is equal or substantially so to the width of the shaft 1. In the preferred form of construction the cam surface is provided with inclined surfaces 11, 12 against which the shaft 1 is adapted to rest. 9 is a screw threaded hole opposite the cam surface or opposite one of the inclined surfaces and adapted for the reception of a screw 7 the inner end of which is adapted to enter an inclined recess or slot 2 in the shaft 1 After the movable jaw 5 has been adjusted in its relatively angular position by turning or pivoting it on the highest point of the cam surface 10, it is locked in position by tightening the screw 7 in the inclined key way or recess 2 of the shaft; the relatively stationary jaw 3 is also provided. withan inclined abutting surface 13 for contact with the confronting surface of the relatively movable jaw 5.

It is obvious that my invention is susceptible of various changes and modifications in accordance with local conditions or to adapt itself to different kinds of material, and to suit the convenience of the user, and without departing from the spirit of my invention as expressed in the claim hereunto appended. Thus for instance, I may change the location and inclination of the abutment 13 or the position and inclination of the surfaces 10, 1.1, and the relative arrangement of the securing screw with corresponding recess or keyway, and various other changes may be introduced.

The terms movable and immovable jaws are only relative, as I may hold the 5 stationary, and displace the 4 or I may move both jaws relatively to each other.

What I claim is In a gripping device in combination two relatively movable jaws, guiding means for longitudinal and relatively transverse movement of the jaws, there being inclines on said guiding means, locking means in one jaw, inclined recess in the other jaw engageable with said locking means.

In testimony whereof I afiix my signature.

HENRY F. SAMSON.

and there being 

